Struct rgb::alt::GrayAlpha

#[repr(C)]pub struct GrayAlpha<ComponentType, AlphaComponentType = ComponentType>(pub ComponentType, pub AlphaComponentType);

Grayscale with alpha. Use .0/.1 to access.

Implementations

impl<T: Clone, A> GrayAlpha<T, A>

pub fn gray(&self) -> Gray<T>

Copy Gray component out of the GrayAlpha struct

impl<T, A> GrayAlpha<T, A>

pub fn gray_mut(&mut self) -> &mut Gray<T>

Provide a mutable view of only Gray component (leaving out alpha).

impl<T: Copy, A: Clone> GrayAlpha<T, A>

pub fn alpha(&self, a: A) -> Self

Create a new GrayAlpha with the new alpha value, but same gray value

pub fn map_alpha<F, B>(&self, f: F) -> GrayAlpha<T, B> where
    F: FnOnce(A) -> B, 

Create a new GrayAlpha with a new alpha value created by the callback.

pub fn map_gray<F, U, B>(&self, f: F) -> GrayAlpha<U, B> where
    F: FnOnce(T) -> U,
    U: Clone,
    B: From<A> + Clone, 

Create new GrayAlpha with the same alpha value, but different Gray value

Trait Implementations

impl<T> AsMut<T> for GrayAlpha<T>

fn as_mut(&mut self) -> &mut T

Performs the conversion.

impl<T> AsPixels<GrayAlpha<T, T>> for [T]

fn as_pixels(&self) -> &[GrayAlpha<T>]

Reinterpret the slice as a read-only/shared slice of pixels. Multiple consecutive elements in the slice are intepreted as a single pixel (depending on format, e.g. 3 for RGB, 4 for RGBA).

fn as_pixels_mut(&mut self) -> &mut [GrayAlpha<T>]

Reinterpret the slice as a mutable/exclusive slice of pixels. Multiple consecutive elements in the slice are intepreted as a single pixel (depending on format, e.g. 3 for RGB, 4 for RGBA).

impl<T> AsRef<T> for GrayAlpha<T>

fn as_ref(&self) -> &T

Performs the conversion.

impl<ComponentType: Clone, AlphaComponentType: Clone> Clone for GrayAlpha<ComponentType, AlphaComponentType>

fn clone(&self) -> GrayAlpha<ComponentType, AlphaComponentType>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Copy, B> ComponentMap<GrayAlpha<B, B>, T, B> for GrayAlpha<T>

fn map<F>(&self, f: F) -> GrayAlpha<B> where
    F: FnMut(T) -> B, 

Convenience function (equivalent of self.iter().map().collect()) for applying the same formula to every component.

impl<T> ComponentSlice<T> for GrayAlpha<T>

fn as_slice(&self) -> &[T]

The components interpreted as an array, e.g. one RGB expands to 3 elements.

fn as_mut_slice(&mut self) -> &mut [T]

impl<ComponentType: Copy, AlphaComponentType: Copy> Copy for GrayAlpha<ComponentType, AlphaComponentType>

impl<ComponentType: Debug, AlphaComponentType: Debug> Debug for GrayAlpha<ComponentType, AlphaComponentType>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<ComponentType: Default, AlphaComponentType: Default> Default for GrayAlpha<ComponentType, AlphaComponentType>

fn default() -> GrayAlpha<ComponentType, AlphaComponentType>

Returns the “default value” for a type.

impl<ComponentType: Eq, AlphaComponentType: Eq> Eq for GrayAlpha<ComponentType, AlphaComponentType>

impl<T: Copy> From<Gray<T>> for GrayAlpha<T, u8>

Assumes 255 is opaque

fn from(other: Gray<T>) -> Self

Performs the conversion.

impl<T: Copy> From<Gray<T>> for GrayAlpha<T, u16>

Assumes 65535 is opaque

fn from(other: Gray<T>) -> Self

Performs the conversion.

impl<T: Clone, A> From<GrayAlpha<T, A>> for RGBA<T, A>

fn from(other: GrayAlpha<T, A>) -> Self

Performs the conversion.

impl<ComponentType: Hash, AlphaComponentType: Hash> Hash for GrayAlpha<ComponentType, AlphaComponentType>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<ComponentType: Ord, AlphaComponentType: Ord> Ord for GrayAlpha<ComponentType, AlphaComponentType>

fn cmp(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl<ComponentType: PartialEq, AlphaComponentType: PartialEq> PartialEq<GrayAlpha<ComponentType, AlphaComponentType>> for GrayAlpha<ComponentType, AlphaComponentType>

fn eq(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &GrayAlpha<ComponentType, AlphaComponentType>) -> bool

This method tests for !=.

impl<ComponentType: PartialOrd, AlphaComponentType: PartialOrd> PartialOrd<GrayAlpha<ComponentType, AlphaComponentType>> for GrayAlpha<ComponentType, AlphaComponentType>

fn partial_cmp(
    &self,
    other: &GrayAlpha<ComponentType, AlphaComponentType>
) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]pub fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<ComponentType, AlphaComponentType> StructuralEq for GrayAlpha<ComponentType, AlphaComponentType>

impl<ComponentType, AlphaComponentType> StructuralPartialEq for GrayAlpha<ComponentType, AlphaComponentType>